Paul Mackerras <[EMAIL PROTECTED]> wrote: > > This patch, by Jake Moilanen with some further hacking from me, adds a > real execute permission bit to the linux PTEs on PPC64, and connects > that into the kernel infrastructure for implementing non-executable > stacks and heaps. This means that on any PPC64 cpu since the POWER4 > (i.e. POWER4, PPC970, PPC970FX, POWER4+, POWER5) you will get a > segfault if you try to execute instructions from a region that doesn't > have PROT_EXEC permission. The patch also marks the pages of the > linear mapping that aren't part of the kernel text as non-executable. > > Andrew and Linus, could you try this on your G5s?
Seems to work OK under ydl 4.0. OpenOffice hung once starting up, but that wasn't repeatable. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
